Submitted by Ron Peled (not verified) on October 3, 2006 - 13:21.
I have this setup on my servers, the problem is that if you are using VirtualHosts under apache and you have various instances of the same software (Joomla for exmaple) APC will present the first precompiled folder to all of your virtualhost servers that have the same application installed. I believe this happens since APC caches the PHP code by their filename and it duplicates if you have the same filename under two folders and virtualhost.
Problem with similar files and virtual hosting
I have this setup on my servers, the problem is that if you are using VirtualHosts under apache and you have various instances of the same software (Joomla for exmaple) APC will present the first precompiled folder to all of your virtualhost servers that have the same application installed. I believe this happens since APC caches the PHP code by their filename and it duplicates if you have the same filename under two folders and virtualhost.
Otherwise APC works great - super fast!